CN220777877U - Dual-motor driving seat mechanism - Google Patents

Abstract

The utility model discloses a double-motor driving seat mechanism, which comprises: a base; the base assembly is attached to the base; the backrest component is arranged at one end of the base component and is suitable for rotating around the connecting end of the backrest component and the base component to be level with the base component; a leg assembly attached to the other end of the base assembly, the leg assembly being adapted to rotate about its connection end with the base assembly; the driving assembly comprises a first motor and a second motor, the first motor is suitable for being connected with the base assembly, and the first motor drives the base assembly to rotate around the connecting end of the base assembly and the leg assembly and lifts one end of the base assembly; the second motor is suitable for being connected with the backrest component and the leg component, and when the backrest component is in a lying state, the second motor is suitable for driving the base component and the backrest component to continuously rotate downwards around the base point by taking the connecting ends of the base component and the backrest component as base points so as to form a zero gravity state. The utility model can be further lifted when in a lying state, so that a user enters a zero gravity state.

Description

Dual-motor driving seat mechanism

Technical Field

The utility model relates to the technical field of intelligent furniture, in particular to a double-motor driving seat mechanism.

Background

At present, when the electric seat is used for adjusting the legs, the backs and the functions, at least three motors are generally adopted to respectively drive each part to work independently, but the arrangement of a plurality of motors greatly occupies limited space, and meanwhile, the cost is increased; in addition, when the current power seat is in a lying state, the lifting height of the leg support is usually 450-480mm, and the current power seat is only in the lying state, and cannot be further lifted so that a user can enter a zero gravity state when lying.

In view of this, there is a need to design a dual motor drive seating mechanism to meet the user's needs.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art.

Therefore, the utility model provides a double-motor driving seat mechanism, which can enable a user to directly enter a zero gravity state.

A dual motor drive seat mechanism according to an embodiment of the present utility model includes:

a base;

a base assembly attached to the base;

the backrest component is arranged at one end of the base component, and is suitable for rotating around the connecting end of the backrest component and the base component to be flush with the base component so as to form a lying state together;

a leg assembly attached to the other end of the base assembly, the leg assembly adapted to rotate about its connection end with the base assembly;

the driving assembly comprises a first motor and a second motor, the first motor is suitable for being connected with the base assembly, the second motor is suitable for being connected with the backrest assembly and the leg assembly, so that the base assembly, the backrest assembly and the leg assembly can be driven to rotate independently, and when the backrest assembly is in a lying state, the first motor is suitable for driving the base assembly and the backrest assembly to take the connecting ends of the base assembly and the backrest assembly as base points, and the backrest assembly integrally winds the base points to rotate downwards continuously so as to form a zero gravity state.

The utility model has the beneficial effects that when the base component and the backrest component are driven by the driving component and the user is in a lying state, the connecting end between the base component and the backrest component is directly taken as a base point to drive the base component and the backrest component to further rotate downwards, and meanwhile, the leg component is further too high so that the user can directly enter a zero gravity state.

Preferably, the base assembly comprises a first base connecting rod, a second base connecting rod, a third base connecting rod and a fourth base connecting rod which are oppositely arranged, the base mounting seat is arranged on the base, one ends of the first base connecting rod and the second base connecting rod are connected with the base mounting seat, the other ends of the first base connecting rod and the second base connecting rod are connected with the third base connecting rod, the other ends of the third base connecting rod and the fourth base connecting rod are connected with the fourth base connecting rod, a first driving rod is arranged between the two third base connecting rods which are oppositely arranged, the first driving rod is connected with the first motor, and the third base connecting rod which is connected with the first driving rod can be driven to synchronously move through the telescopic movement of the first motor so as to raise or lower the height of the base assembly.

Further preferably, the first base connecting rod is further provided with at least one first limiting block, and the first limiting block is suitable for being propped against the base when the first motor drives the base assembly to be lowered, so as to limit the base assembly to be in a horizontal state.

Preferably, the backrest assembly comprises a first backrest connecting rod and a backrest supporting rod which are oppositely arranged, the first backrest connecting rod is oppositely arranged and connected through a second driving rod, one end of the first backrest connecting rod is connected with the second driving rod, the other end of the first backrest connecting rod is connected with the backrest supporting rod, the backrest supporting rod is connected with the connecting arm, the second motor is suitable for being connected with the second driving rod so as to drive the backrest supporting rod to rotate on the connecting arm, and the backrest angle of the backrest supporting rod is adjusted until the backrest supporting rod is flush with the upper end face of the base assembly.

Preferably, the leg assembly comprises a first leg link, a second leg link, a third leg link and a leg support, one end of the first leg link is connected with the connecting arm, the other end of the first leg link is connected with the second leg link, the second leg link is connected with the third leg link, the third leg link is connected with the connecting arm, the leg support is simultaneously connected with the second leg link and the connecting arm, a guide groove is formed along the moving direction of the three leg links, and the third leg link is suitable for moving along the guide groove so as to limit the rotating angle of the leg support until the leg support is flush with the base assembly.

Further preferably, a second limiting block is further arranged on the connecting arm, and the second limiting block is suitable for being propped against the first leg connecting rod to limit the first leg connecting rod to further rotate upwards.

Preferably, the leg support member includes a first leg support bar, a second leg support bar, a third leg support bar, a fourth leg support bar and a fifth leg support bar, two ends of the fifth leg support bar are respectively connected with the connecting arm and the second leg support bar, and the fifth leg support bar is provided with a plurality of mounting holes along the length direction thereof, the second leg connection bar is connected with one of the mounting holes, the other end of the second leg support bar is connected with the first leg support bar, the first leg support bar is further connected with one end of the third leg support bar, the other end of the third leg support bar is connected with the fourth leg support bar, the other end of the fourth leg support bar is connected with the connecting arm, and the middle part of the fourth leg support bar is connected with the second leg support bar.

Still preferably, the base assembly further comprises a buffer mechanism, the buffer mechanism comprises a plurality of springs, and a first buffer mounting plate and a second buffer mounting plate connected with each spring, the first buffer mounting plate is simultaneously connected with the first leg connecting rod and the third leg connecting rod, a first fixing piece suitable for being connected with one end of the springs is arranged on the first buffer mounting plate, the second buffer mounting plate is connected with the base assembly, a second fixing piece is arranged on the second buffer mounting plate, and the springs are suitable for being connected with the first fixing piece and the second fixing piece respectively.

Preferably, the first motor and the second motor are both linear motors.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a side view of a dual motor drive seating mechanism of the present utility model;

FIG. 2 is a schematic structural view of a base assembly of the dual motor drive seating mechanism of the present utility model;

FIG. 3 is an enlarged view of FIG. 1 at A;

FIG. 4 is a top view of a dual motor drive seat mechanism of the present utility model;

FIG. 5 is a schematic view of the dual motor drive seating mechanism of the present utility model in an assisted stand-up condition;

FIG. 6 is a schematic view of a dual motor drive seating mechanism of the present utility model in a seated position;

FIG. 7 is a schematic view of a dual motor drive seating mechanism of the present utility model in a semi-reclined position;

FIG. 8 is a schematic view of the dual motor drive seating mechanism of the present utility model in a reclined position;

FIG. 9 is a schematic view of a dual motor drive seating mechanism of the present utility model in a semi-reclined position with zero gravity;

FIG. 10 is a schematic view of a dual motor drive seating mechanism of the present utility model in a reclined position with zero gravity;

FIG. 11 is a schematic view of a frame structure of a base of the dual motor drive seating mechanism of the present utility model;

fig. 12 is a schematic view of the mounting structure of the base and base assembly and the drive assembly of the dual motor drive seat mechanism of the present utility model.

Reference numerals illustrate:

1. a base; 11. a first frame; 12. a second frame; 13. a third frame; 14. a fourth frame; 15. a base mounting seat; 16. a motor mounting seat;

2. a base assembly; 21. a connecting arm; 22. a first link; 23. a first base link, 24, a second base link; 25. a third base link; 26. a fourth base link; 27. a first limiting block; 28. a second limiting block;

3. a backrest assembly; 31. a first backrest link; 32. a back support bar;

4. a leg assembly; 41. a first leg link; 42. a second leg link; 43. a third leg link; 44. leg supports; 431. a guide groove; 441. a first leg support bar; 442. a second leg support bar; 443. a third leg support bar; 444. a fourth leg support bar; 445. a fifth leg support bar; 446. a first foot rest; 447. a second foot rest; 448. a third foot rest;

5. a drive assembly; 51. a first motor; 52. a second motor; 53. a first driving lever; 54. a second driving lever;

6. a buffer mechanism; 61. a spring; 62. a first buffer mounting plate; 63. a second buffer mounting plate;

7. base point.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured," and "connected" are to be construed broadly, and for example, the term "connected" may be a fixed connection, a removable connection, or an integral connection; either directly or indirectly via an intermediate medium, or in communication with each other or in interaction with each other. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1, a sliding door with a buffer assembly according to an embodiment of the present utility model includes a base 1, a base assembly 2, a backrest assembly 3, a leg assembly 4, and a driving assembly 5.

Wherein the base assembly 2 is attached to the base 1, the backrest assembly 3 is disposed at one end of the base assembly 2, and the backrest assembly 3 is adapted to rotate around the connection end of the backrest assembly 3 and the base assembly 2 until the backrest assembly 3 is flush with the base assembly 2, thereby forming a lying state together, and a user can lie on the base assembly 2 and the backrest assembly 3. The leg assembly 4 is attached to the other end of the base assembly 2 and the leg assembly 4 is adapted to rotate about its connection end with the base assembly 2, the drive assembly 5 comprising a first motor 51 and a second motor 52, both the first motor 51 and the second motor 52 being linear motors.

The first motor 51 is suitable for being connected with the base assembly 2, the second motor 52 is suitable for being connected with the backrest assembly 3 and the leg assembly 4, so as to drive the base assembly 2, the backrest assembly 3 and the leg assembly 4 to rotate independently, and when the seat is in a lying state, the first motor 51 is suitable for driving the base assembly 2 and the backrest assembly 3 to take the connecting ends of the two as a base point 7, the leg assembly 4 is flush with the base assembly 2 and lifted to 400-450mm, then the driving assembly 5 can drive the backrest assembly 3 and the base assembly 2 to rotate by taking the connecting ends of the two as the base point 7, and the backrest assembly 3, the base assembly 2 and the leg assembly 4 can further rotate downwards to form a zero gravity state, and the lifting height of the seat is 480-550mm, so that a user can directly enter a zero gravity state from the lying state when using the seat, and the use experience of the user is improved.

Referring to fig. 10 to 11, the base 1 includes a first frame 11, a second frame 12, a third frame 13 and a fourth frame 14 connected end to end, and base mounts 15 are symmetrically provided on the first frame 11 and the second frame 12 for mounting the base assembly 2, one end of the first frame 11 is connected to one end of the third frame 13, the other end of the third frame 13 is connected to one end of the second frame 12, the other end of the second frame 12 is connected to one end of the fourth frame 14, the other end of the fourth frame 14 is connected to the other end of the first frame 11, a motor mount 16 is provided on the fourth frame 14, and the first motor 51 can be fixedly mounted on the base 1 through the motor mount 16

Specifically, the base assembly 2 includes two connecting arms 21, two connecting arms 21 are oppositely disposed at two sides of the base 1, and a first connecting rod 22 is disposed between the two connecting arms 21, and the two connecting arms 21 disposed at two sides can be synchronously driven to synchronously move by the first connecting rod 22.

More specifically, the base assembly 2 further includes a first base link 23, a second base link 24, a third base link 25 and a fourth base link 26 that are disposed opposite to each other, the base mount 15 is disposed on the base 1, one ends of the first base link 23 and the second base link 24 are connected to the base mount 15 and can rotate around the connection end with the base mount 15, the other ends of the first base link 23 and the second base link 24 are connected to the third base link 25, the first base link 23 and the second base link 24 can rotate on the third base link 25, the other end of the third base link 25 is connected to the fourth base link 26, the third base link 25 is adapted to rotate around the connection end with the fourth base link 26, and the other end of the fourth base link 26 is connected to the same-side connecting arm 21 while rotating.

In addition, a first driving rod 53 is disposed between the two third base connecting rods 25 disposed oppositely, and the first driving rod 53 is connected with the first motor 51, so, when the first motor 51 performs telescopic motion, the first driving rod 53 can be driven to synchronously stretch out and draw back, and meanwhile, the third base connecting rod 25 and the fourth base connecting rod 26 connected with the first driving rod 53 are driven to rotate, namely, when the first motor 51 stretches out, the base component 2 and the backrest component 3 disposed on the base 1 can be lifted synchronously, and further lifting of the overall posture is achieved, and when the first motor 51 retracts, the base component 2 and the backrest component 3 disposed on the base 1 can be driven to be lowered until the first motor is retracted to an initial sitting posture state. When the user sits on the base assembly 2, i.e. is in a sitting position at this time, the first motor 51 is extended to gradually raise one end of the base assembly 2 and the backrest assembly 3 disposed thereon, so that the user gradually approaches from the sitting position to the standing position, thereby assisting the user to directly enter the standing position from the sitting position.

More specifically, the first base link 25 is further provided with at least one first limiting block 27, and the first limiting block 27 is suitable for being abutted against the base 1 when the first motor 51 drives the base assembly 2 to be lowered, so that the base assembly 2 can be limited to be horizontal in the normal sitting posture state.

Referring to fig. 2 to 3, the backrest module 3 includes a first backrest link 31 and a backrest support bar 32 which are disposed opposite to each other, the first backrest link 31 disposed opposite to each other is connected to each other via a second driving bar 54, one end of the first backrest link 31 is connected to the second driving bar 54, the other end is connected to the backrest support bar 32, and the backrest support bar 32 is connected to the connection arm 21, and the second motor 52 is adapted to be connected to the second driving bar 54 to drive the backrest support bar 32 to rotate on the connection arm 21, and the second driving bar 54 rotates while driving the backrest support bar 32 connected thereto to rotate to tilt forward or backward, thereby adjusting the backrest angle of the backrest support bar 32 until the backrest support bar 32 is flush with the base module 2.

The leg assembly 4 includes a first leg link 41, a second leg link 42, a third leg link 43, and a leg support 44, one end of the first leg link 41 is connected to the connection arm 21, the other end is connected to the second leg link 42, the second leg link 42 is connected to the third leg link 43, the third leg link 43 is connected to the connection arm 21, the leg support 44 is connected to the second leg link 42 and the connection arm 21 at the same time, and a guide groove 431 is opened in a moving direction of the three leg links, and the third leg link 43 is adapted to move along the guide groove 431 to restrict a rotation angle of the leg support 44 until being flush with the base assembly 2.

The leg support member 44 includes a first leg support rod 441, a second leg support rod 442, a third leg support rod 443, a fourth leg support rod 444, and a fifth leg support rod 445, wherein two ends of the fifth leg support rod 445 are respectively connected with the connecting arm 21 and the second leg support rod 442, and the fifth leg support rod 445 is provided with a plurality of mounting holes along a length direction thereof, the second leg connecting rod 42 is rotatably connected with one of the mounting holes, the other end of the second leg support rod 442 is connected with the first leg support rod 441, the first leg support rod 441 is further connected with one end of the third leg support rod 443, the other end of the third leg support rod 443 is connected with the fourth leg support rod 444, the other end of the fourth leg support rod 444 is connected with the connecting arm 21, and the middle portion 442 of the fourth leg support rod 444 is connected with the second leg support rod 442.

In addition, the first leg support bar 441 is further connected with a first foot rest 446, a second foot rest 447 and a third foot rest 448, and when the mop support 44 is unfolded, the first foot rest 446, the second foot rest 447 and the third foot rest 448 connected with the first leg support bar 441 are unfolded synchronously, so as to be capable of supporting the feet of the user. One end of the first foot rest 446 and one end of the second foot rest 447 are connected to the first leg support rod 441, the other end of the first foot rest 446 and the other end of the second foot rest 447 are connected to the third foot rest 448, and the connection points can rotate, so as to achieve the zooming and unfolding of the first foot rest 446, the second foot rest 447 and the third foot rest 448.

The connecting arm 21 is further provided with a second limiting block 28, and the second limiting block 28 is suitable for being abutted against the first leg connecting rod 41 to limit the first leg connecting rod 41 to further rotate upwards.

The base assembly 2 further comprises a buffer mechanism 6, the buffer mechanism 6 comprises a plurality of springs 61, and a first buffer mounting plate 62 and a second buffer mounting plate 63 connected with each spring 61, the first buffer mounting plate 62 is simultaneously connected with the first leg connecting rod 41 and the third leg connecting rod 43, a first fixing piece suitable for being connected with one end of each spring 61 is arranged on the first buffer mounting plate 62, the second buffer mounting plate 63 is connected with the base assembly 2, a second fixing piece is arranged on the second buffer mounting plate 63, and the springs 61 are suitable for being connected with the first fixing piece and the second fixing piece respectively.

Referring to fig. 1 or 6, when in the sitting position, the leg assembly 4 is fully contracted, wherein the first leg support rod 441 is rotated about its connection end with the second leg support rod 442 and the third leg support rod 443 until the first leg support rod 441 is in the vertical direction, the fourth leg support rod 444 is rotated about its connection end with the link arm to be in a nearly parallel state with the first leg support rod 441, and the fifth leg support rod 445 is rotated about its connection end with the second leg link 42 until the fifth leg support rod 445 is contracted to be in a nearly parallel state with the first leg support rod 441, and the backrest assembly 3 is in an initial position with the base assembly 2 and the leg assembly 4, and the user sits thereon in the initial sitting position.

Referring to fig. 7, when in the TV position, on the basis of the sitting posture, as the user operates the first motor 51 and the second motor 52 through the wireless controller to move, first, the second motor 52 drives the plurality of leg support bars 44 to be unfolded from the contracted state, the motor at this time drives the link arm 21 to move backward, the fifth leg support bar 445 connected to the link arm 21 is driven to extend forward while the fifth leg support bar 445 extends forward, the fourth leg support bar 444 connected to the middle portion thereof is driven to extend, the fourth leg support bar 444 is driven to extend after extension to simultaneously extend the second leg support bar 442 and the third leg support bar 443, so as to drive the first leg support bar 441 connected to the second leg support bar 442 and the third leg support bar 443 to be unfolded, the feet connected to the first leg support bar 441 are unfolded simultaneously, the base assembly 2 and the backrest assembly 3 at this time do not rotate relatively, and the lifting height of the uppermost ends of the leg support bars 44 at this time is 400-450mm.

Referring to fig. 8, when the TV posture is changed to the lying posture, the user controls the second motor 52 to drive the backrest assembly 3 to move through the wireless controller on the basis of the TV posture to form the lying posture. At this time, the second motor 52 drives the second driving rod 54 connected thereto to move, and the second driving rod 54 drives the first backrest link 31 symmetrically disposed at both ends thereof to rotate backward while the backrest support rod 32 connected to the first backrest link 31 is tilted backward, so that the backrest and the legs can be in a relatively parallel state after the user shifts from the TV posture to the lying posture.

Referring to fig. 9, the high foot lifting posture is that the leg assembly 4 is further lifted by the TV posture to form the high foot lifting posture, the user continuously controls the second motor 52 through the wireless controller, the second motor 52 can drive the backrest assembly 3 and the base assembly 2 to pivot at a base point 7 between the backrest assembly 3 and the base assembly 2, at this time, the second motor 52 is suitable for driving the first leg connecting rod 41 connected with the connecting arm 21 to extend forwards, at the same time, the connecting node of the first leg connecting rod 41 and the first buffer mounting plate is used as the base point 7, the base assembly 2 and the backrest assembly 3 can rotate around the base point 7, at the same time, the first leg connecting rod 41 of the leg assembly 4 drives the second leg connecting rod 42 connected with the first leg connecting rod 41 to rotate around the base point 7, so that the second leg connecting rod 42 is driven to extend at the same time when the first leg connecting rod 41 extends, the fourth leg connecting rod 444 and the fifth leg connecting rod 445 extend upwards, at the same time, at the moment, the first leg connecting rod 441, the second leg supporting rod 442 and the third leg connecting rod 442 are simultaneously rotated to form a lifting posture of 550 mm-550, and the lifting posture is formed at the same time, the lifting posture is formed by the corresponding connection points of the first leg connecting rod and the fifth leg connecting rod 445.

Referring to fig. 10, when the user is in the zero gravity state, on the basis of the high lifting foot posture, the lifting height of the leg assembly 4 is kept unchanged, then the user directly drives the first backrest connecting rod 31 of the backrest assembly 3 connected with the second driving connecting rod 521 to rotate backwards through the wireless controller, the first backrest connecting rod 31 rotates backwards and simultaneously drives the backrest supporting rod 32 connected with the first backrest connecting rod to rotate backwards until the user lies on the backrest and legs at the opposite level, and the height of the leg supporting rod 44 at the moment is 480-550mm.

The backrest assembly 3, the base assembly 2 and the leg assemblies 4 are powered by the driving assembly 5 controlled by the wireless controller, so that the dual-motor driving seat mechanism has a normal sitting posture, and then the user is in a TV posture by lifting the leg assemblies 4, and when the user is in the TV posture, the backrest assembly 3 is driven to tilt backwards by the driving assembly 5 to form a lying posture. In addition, the intelligent seat is further provided with a high foot lifting posture and a zero gravity posture, the high foot lifting posture is based on the TV posture, the leg assembly 4 is in a unfolding state, the backrest assembly 3 and the base assembly 2 are integrally rotated around the base point 7 so that the lifting height of the leg assembly 4 is further lifted to form the high foot lifting posture, and then the driving assembly 5 is controlled to drive the backrest assembly 3 to tilt backwards on the basis of the high foot lifting posture, so that the zero gravity posture is formed when the backrest of a user is in a relatively parallel state with the legs. And the sitting posture of the user is assisted, and when the user is in a sitting posture state, one end of the base assembly 2 is driven to be lifted upwards, so that the user is assisted to stand, and the sitting posture of the user is assisted. Therefore, through the collection of the multiple states, the application range of the double-motor driving seat mechanism is greatly improved, and meanwhile, the diversified requirements of users are met.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-described preferred embodiments according to the present utility model are intended to suggest that, from the above description, various changes and modifications can be made by the worker in question without departing from the technical spirit of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined as the scope of the claims.

Claims (10)

1. A dual motor drive seating mechanism comprising:

a base (1);

-a base assembly (2) attached to the base (1);

the backrest assembly (3) is arranged at one end of the base assembly (2), and the backrest assembly (3) is suitable for rotating around the connecting end of the backrest assembly and the base assembly (2) to be flush with the base assembly (2) so as to form a lying state together;

-a leg assembly attached to the other end of the base assembly (2), the leg assembly being adapted to rotate about its connection end with the base assembly (2);

a drive assembly (5), the drive assembly (5) comprising a first motor (51) and a second motor (52), the first motor (51) being adapted to be connected to the base assembly (2), the first motor (51) driving the base assembly (2) to rotate about its connection end with the leg assembly and lifting one end of the base assembly (2) to form an assisted standing state;

the second motor (52) is suitable for being connected with the backrest component (3) and the leg component, so that the base component (2), the backrest component (3) and the leg component can be driven to rotate independently, and when the backrest component is in a lying state, the second motor (52) is suitable for driving the base component (2) and the backrest component (3) to continuously rotate around the base point (7) by taking the connecting ends of the base component (2) and the backrest component (3) as base points (7), so that a zero gravity state is formed.

2. The dual motor drive seat mechanism according to claim 1, wherein the base assembly (2) includes two connecting arms (21), the two connecting arms (21) are oppositely disposed at two sides of the base (1), and a first connecting rod (22) is disposed between the two connecting arms (21) so as to be capable of synchronously driving the two connecting arms (21) disposed at two sides to synchronously move via the first connecting rod (22).

3. The dual motor drive seat mechanism according to claim 2, wherein the base assembly (2) further comprises a first base link (23), a second base link (24), a third base link (25) and a fourth base link (26) which are oppositely arranged, the base mounting seat (15) is arranged on the base (1), one ends of the first base link (23) and the second base link (24) are connected with the base mounting seat (15), the other ends of the first base link (23) and the second base link (24) are connected with the third base link (25), the other ends of the third base link (25) are connected with the fourth base link (26), the other ends of the fourth base link (26) are connected with each connecting arm (21), a first driving rod (53) is arranged between the two oppositely arranged third base links (25), and the first driving rod (53) is connected with the first motor (51) so as to drive the base assembly (2) to move in a synchronous manner via the first motor (51) and the second base assembly (25) to be lowered.

4. A dual motor drive seat mechanism according to claim 3, characterized in that the first base link (23) is further provided with at least one first stopper (27), the first stopper (27) being adapted to abut against the base (1) when the first motor (51) drives the base assembly (2) to be lowered, so as to restrict the base assembly (2) to be in a horizontal state.

5. The dual motor drive seat mechanism according to claim 2, wherein the backrest assembly (3) comprises a first backrest link (31) and a backrest support bar (32) which are oppositely arranged, the first backrest link (31) is connected with each other via a second drive bar (54), one end of the first backrest link (31) is connected with the second drive bar (54), the other end is connected with the backrest support bar (32), the backrest support bar (32) is connected with the connecting arm (21), and the second motor (52) is suitable for being connected with the second drive bar (54) so as to drive the backrest support bar (32) to rotate on the connecting arm (21) to adjust the backrest angle of the backrest support bar (32) until the backrest support bar (32) is flush with the upper end face of the base assembly (2).

6. The dual motor drive seat mechanism according to claim 2, wherein the leg assembly comprises a first leg link (41), a second leg link (42), a third leg link (43) and a leg support (44), one end of the first leg link (41) is connected to the connecting arm (21), the other end is connected to the second leg link (42), the second leg link (42) is connected to the third leg link (43), the third leg link (43) is connected to the connecting arm (21), the leg support (44) is connected to both the second leg link (42) and the connecting arm (21), and a guide groove (431) is provided in a moving direction of the three leg links, the third leg link (43) is adapted to move along the guide groove (431) to restrict a rotating angle of the leg support (44) until flush with the base assembly (2).

7. The dual motor drive seat mechanism according to claim 6, wherein a second stopper (28) is further provided on the connecting arm (21), the second stopper (28) being adapted to abut against the first leg link (41) to restrict the first leg link (41) from further rotating upward.

8. The two-motor drive seat mechanism according to claim 6, wherein the leg support member (44) includes a first leg support bar (441), a second leg support bar (442), a third leg support bar (443), a fourth leg support bar (444), and a fifth leg support bar (445), both ends of the fifth leg support bar (445) are respectively connected to the connecting arm (21) and the second leg support bar (442), and the fifth leg support bar (445) is provided with a plurality of mounting holes along a length direction thereof, the second leg link (42) is connected to one of the mounting holes, the other end of the second leg support bar (442) is connected to the first leg support bar (441), the first leg support bar (441) is also connected to one end of the third leg support bar (443), the other end of the third leg support bar (443) is connected to the fourth leg support bar (444), the other end of the fourth leg support bar (444) is connected to the connecting arm (21), and the fourth leg support bar (444) is connected to the second leg support bar (442).

9. The dual motor drive seat mechanism of claim 8, wherein the base assembly (2) further comprises a buffer mechanism (6), the buffer mechanism (6) comprises a plurality of springs (61), and a first buffer mounting plate (62) and a second buffer mounting plate (63) connected with each spring (61), the first buffer mounting plate (62) is simultaneously connected with the first leg connecting rod (41) and the third leg connecting rod (43), a first fixing piece suitable for being connected with one end of the spring (61) is arranged on the first buffer mounting plate (62), the second buffer mounting plate (63) is connected with the base assembly (2), a second fixing piece is arranged on the second buffer mounting plate (63), and the springs (61) are suitable for being connected with the first fixing piece and the second fixing piece respectively.

10. The dual motor drive seat mechanism according to any one of claims 1 to 9, wherein the first motor (51) and the second motor (52) are both linear motors.